typeck.c (build_binary_op): Do signed/unsigned warnings for >?

* typeck.c (build_binary_op): Do signed/unsigned warnings for >?
and <? operators.

From-SVN: r38222

gcc/cp/ChangeLog

+2000-12-11  DJ Delorie  <dj@redhat.com>
+
+	* typeck.c (build_binary_op): Do signed/unsigned warnings for >?
+	and <? operators.
+
 2000-12-08  Jason Merrill  <jason@redhat.com>
 
 	* error.c (dump_function_name): Don't let the user see __comp_ctor.

gcc/cp/typeck.c

@@ -3921,7 +3921,8 @@ build_binary_op (code, orig_op0, orig_op1, convert_p)
 	  resultcode = xresultcode;
 	}
 
-      if (short_compare && warn_sign_compare)
+      if ((short_compare || code == MIN_EXPR || code == MAX_EXPR)
+	  && warn_sign_compare)
 	{
 	  int op0_signed = ! TREE_UNSIGNED (TREE_TYPE (orig_op0));
 	  int op1_signed = ! TREE_UNSIGNED (TREE_TYPE (orig_op1));